class Solution
{
public:
    int countGoodTriplets(vector<int> &arr, int a, int b, int c)
    {
        int goodCount = 0;
        int n = arr.size();
        for (int i = 0; i < n; ++i)
        {
            for (int j = i + 1; j < n; ++j)
            {
                for (int k = j + 1; k < n; ++k)
                {
                    if (abs(arr[i] - arr[j]) <= a && abs(arr[j] - arr[k]) <= b && abs(arr[i] - arr[k]) <= c)
                    {
                        ++goodCount;
                    }
                }
            }
        }
        return goodCount;
    }
};